Chimney-cowl



INVENTOR:

ATTORNEYS.

C. W. AGKERMANN.

- CHIMNEY OOWL.

Patented Feb. 8, 1 887.

N. PETERS, PhaIol-Mnmpher. Wnhinglnn, D. (L

(No Model.)

6% m a d m CHRISTIAN W. AOKERMANN, OF STBEATOR, ILLINOIS.

CHIMNEY-COWL.

SPECIFICATION forming part of Letters Patent No. 357,355, dated February 8, 1887.

Application filed November 27, 1886. Serial No. 220,057. (No model.)

To all whom it may concern:

Be it known that I, CHRISTIAN W. AOKER- MANN, ofStreator, in the county of La Salle and State of Illinois, have invented a new and Improved Ohimney-Cowl, of which the following is a full, clear, and exact description.

My invention relates to an improvement in chimney-cowls, and has for its object to provide a cowl which will afford perfect ventilation to a room connected therewith, yet automatically prevent rain or snow from blowing into the chimney. The invention consistsin providing the conical cap of a cowl with a series of hinged pendants and in the details of construction, as will be hereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures Figure 1 is a side elevation of myimproved chimney-cowl, and Fig. 2 a central vertical section through line a a: of Fig. 1. horizontal section of the same through liney y of Fig. 2, looking upward.

In carrying out my invention I attach to the body A or pipe portion of the cowl a conical top, B, through the medium of three or more supports, b. These supportsI preferably rivet to the outer face of the body A, near the top thereof. The other .end, being carried outward and upward, is riveted to the inner face of the conical top B a distance from its edge through an integral right-angularprojectionJ).

Near the edge of the conical top B, I hinge, at equidistance apart, a series of metallic pendants, D, having their edges cut at an inclination inward from top to bottom, so that the upper edge of each pendant will be wider than the lower edge.

Fig. 3 is a In hinging the pendants to the conical top I usually employ straight wire rods (Z, entering the ends of said rods near the top of the pendants, so as to form a central staple-like fastening, and carrying the said ends at right angles upward th rough the conical top, there securing them upon the outside by bending them t0- ward each other, as shown, or in any other approved manner. The style of hinge may be varied, however, without departing from the spirit of my invention.

WVhen my improved cowl is employed, the

wind is not only prevented from blowing down the chimney, and thereby filling the room with smoke and gas, but aperfect ventilation is afforded at all times. Any wind strong enough to cause damage or trouble with a chimney will close the windward side at the top and leave the lee side open, thereby sustaining under all circumstances a perfect draft.

It is evident that the pendants will remainopen in calm weather by their own weight and close with but a slight wind.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

A chimney-cowl provided with a body, A,

7 CHRISTIAN IV. AGKERM ANN.

Witnesses:

J. E. WILLIAMS, WM. AcKERMANN. 

